Tulsa Foundation Co. repairs the full failure chain Green Country clay causes: settlement (piering from $1,200/pier), slab movement (from $3,500), cracks (from $400), drainage (from under $500), and sunken concrete (from $500) — each preceded by a free measured evaluation.
Foundation Piering & Underpinning
Steel piers driven past Green Country's active clay to stable bearing — the permanent answer to settlement.
Slab Foundation Repair
Support and lifting for the suburban slab belt when the clay beneath it swings.
Foundation Crack Repair
Injection, sealing, and reinforcement for cracks in brick, block, and slab.
Drainage Correction
Reducing the moisture swing that drives Oklahoma foundation movement.
Concrete Leveling
Polyurethane lifting for sunken driveways, patios, walks, and porch slabs.
Cost Guide: What Repairs Run in Tulsa
Every repair class priced for this market, the four factors that move a quote, and how to compare bids.
Why the services come as a set
Expansive clay doesn't specialize. The same seasonal swing that drops a footing cracks the brick above it, racks the doors inside, and tilts the flatwork outside. Companies organized around one product sell that product. We're organized around the soil, which is why an evaluation reads the whole chain and the scope only includes the links your house actually needs.
Which repair fixes which failure
| What you see | The clay mechanism | The fix | Typical range | Time |
|---|---|---|---|---|
| Stair-step cracks, dropped corners, sloping floors | Clay contracting away from the footing in dry spells | Piers to stable bearing | $4,000–$15,000 | 2 days–1 week |
| Interior slab cracks, doors racking | Differential movement beneath a slab-on-grade | Perimeter or interior support | $3,500–$12,000 | 2–5 days |
| Cracks widening between seasons | Seasonal movement opening paths through masonry | Injection and reinforcement | $400–$1,500 | Hours |
| Water pooling at the wall, soggy beds | Roof and lot water feeding the moisture cycle | Grading, extensions, drains | Under $500–$6,000 | 1–2 days |
| Stepped driveway joints, tilted patio | Flatwork riding the clay with no footing beneath | Polyurethane lifting | $500–$2,500 | Hours |
Two or more symptoms nearly always share one cause. One evaluation, one scope, one mobilization — that's the cost control this soil allows.
Sequence is the service
Anyone can install a pier. The skill here is ordering the work so it stays fixed: water managed before steel goes in, structure stabilized before finishes are repaired, cosmetics last — once movement is provably over. Our scopes are written in that order with fixed prices per line, and lines the measurements don't justify simply aren't on them.
Service questions
Which service does my house actually need?
The evaluation answers that in about an hour. Stair-step cracks with sloping floors point to piering; interior slab cracks with racked doors point to slab work; cracks alone often need injection; and water at the foundation drives a surprising share of all of it. The evaluation is free precisely so the diagnosis doesn't depend on what we'd like to sell.
Do you charge for evaluations?
No. Photos, crack measurements, a laser floor survey, and a written scope with fixed prices are free across all ten communities we serve — including the visits that end with 'mark it and watch it' rather than an invoice.
Can one crew handle structure and water together?
That's the point of the stack. Piering, slab support, crack repair, drainage, and concrete leveling are one clay problem wearing five costumes — scoping them together is how the repair holds and how you avoid paying two mobilizations for one cause.
Get a free Tulsa foundation evaluation
Tell us what the house is doing — stair-step cracks, doors that stick every August, sloping floors, separating trim — and we’ll schedule an evaluation with photos and measurements. We reply the same business day.